Reverse Engineering Tool Turns Code into Mind-Bending Images

Psychological Warfare in Reverse Engineering

Reverse Engineering Tool Turns Code into Mind-Bending Images

REpsych is a proof-of-concept toolset that transforms a program's control flow graph (CFG) into images. By manipulating the CFG, it can generate any picture from source code, effectively embedding visual art into the structure of a program. The tool works with IDA Pro and other CFG viewers, and was presented at DEF CON 2015. While it has no practical purpose, it demonstrates a novel and surprising capability in reverse engineering.

There is no specific point to the project (other than to show that it can be done), but possible (non-serious) applications are outlined in the DEF CON presentation.

More from this day

2026-08-07